linux-kernel - RE: [PATCH 1/2] net: fec_main: Use platform_get_irq_byname

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Date:   Thu, 10 Oct 2019 06:55:04 +0000
From:   Andy Duan <fugang.duan@....com>
To:     Anson Huang <anson.huang@....com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
        "swboyd@...omium.org" <swboyd@...omium.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH 1/2] net: fec_main: Use platform_get_irq_byname_optional()
 to avoid error message

From: Anson Huang <Anson.Huang@....com> Sent: Wednesday, October 9, 2019 6:16 PM
> Failed to get irq using name is NOT fatal as driver will use index to get irq
> instead, use platform_get_irq_byname_optional() instead of
> platform_get_irq_byname() to avoid below error message during
> probe:
> 
> [    0.819312] fec 30be0000.ethernet: IRQ int0 not found
> [    0.824433] fec 30be0000.ethernet: IRQ int1 not found
> [    0.829539] fec 30be0000.ethernet: IRQ int2 not found
> 
> Fixes: 7723f4c5ecdb ("driver core: platform: Add an error message to
> platform_get_irq*()")
> Signed-off-by: Anson Huang <Anson.Huang@....com>

Acked-by: Fugang Duan <fugang.duan@....com>

> ---
>  drivers/net/ethernet/freescale/fec_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index d4d4c72..22c01b2 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -3558,7 +3558,7 @@ fec_probe(struct platform_device *pdev)
> 
>  	for (i = 0; i < irq_cnt; i++) {
>  		snprintf(irq_name, sizeof(irq_name), "int%d", i);
> -		irq = platform_get_irq_byname(pdev, irq_name);
> +		irq = platform_get_irq_byname_optional(pdev, irq_name);
>  		if (irq < 0)
>  			irq = platform_get_irq(pdev, i);
>  		if (irq < 0) {
> --
> 2.7.4